Effects of Dietary Fatty Acids on Gene Expression and Biological Processes in Different Tissues of Pigs: A Review

Date
2021-11-16
Authors
Fanalli, Simara Larissa
da Silva, Bruna Pereira Martins
Petry, Bruna
Santana, Miguel Henrique de Almeida
Polizel, Guilherme Henrique Gebim
Antunes, Robson Carlos
de Almeida, Vivian Vezzoni
Moreira, Gabriel Costa Monteiro
Luchiari Filho, Albino
Coutinho, Luiz Lehmann
Balieiro, Júlio Cesar de Carvalho
Reecy, Mark
Koltes, James
Koltes, Dawn
Cesar, Aline Silva Mello
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© Author(s) 2022
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Animal Science
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Animal Science
Abstract
Studies on the influence of dietary components and their effects are fundamental for nutrigenomics, or the study of how nutrients can be cellular sensors, how they affect biological processes and gene expression in different tissues. Lipids are an important source of fatty acids (FA) and energy and are fundamental to biological processes and influence the regulation of transcription. Pigs are excellent model to study nutrigenomics, particularly lipid metabolism because the deposition and composition of FA in their tissues reflect the composition of FA in their diet. Recent studies show that FA supplementation is important in production systems, such as growing and finishing pigs, as it can improve the energy value of the feed, help reduce costs, improve animal welfare, and influence the nutritional value of the meat. Studies show that oleic (OA), linoleic (LA), docosahexaenoic (DHA), and eicosapentaenoic (EPA) acids are associated with the regulation of transcription in tissues such as muscle, liver, adipose tissue, and brain. Other studies indicate that EPA and DHA are associated with changes in specific signaling pathways, altering gene expression and biophysical properties of membranes. This review, therefore, focuses on the current knowledge of the effects of dietary FA on production traits and gene expression.
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This preprint is made available through Preprints, doi:10.20944/preprints202111.0279.v1. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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animal model, dietary components, feeding strategy, gene expression, lipid profile, nutrients, nutrigenomic, physiological processes, signaling pathways, transcription
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